Project #50247 - Cause Effect, Why-Why, Pareto Chart, Frequency Distribution, and 80/20

You have been contracted to analyze problems that have been occurring at a manufacturing facility that 

produces and packages tubes of tooth paste. They have been shipping too many defective packages. The 

following are the stated defects: empty box, empty tube, missing cap, unsealed box, incorrect cap, incorrect tube, incorrect label, and damaged tube.


1) Create a cause and effect diagram for the above identified problem.

2) Create a Why-Why diagram for the above identified problem.

3) Upon analysis by the company, they found out how often each defect occurred. The numbers of occurrencesfor each defect are in the table below. Use this data to create a Pareto chart with Lorenz curve.

Category Occurrences per million

Empty box 11

Empty tube 3

Missing cap 6

Unsealed box 22

Incorrect cap 4

Incorrect tube 1

Incorrect label 8

Damaged tube 5



4) Further analysis found that the weight of each tube of toothpaste varied. The following table contains the weights of samples taken from each batch of tubes. The label on the tubes states that the weight should be six ounces. Create Frequency distribution (NOT A HISTOGRAM) of the data and analyze it for skewness.


Weight in ounces

5.8 6.1 5.9 6.0 5.9

6.0 6.0 5.9 6.1 6.0

6.0 5.9 5.8 5.9 5.8

5.7 6.1 6.0 6.0 6.2

5.9 5.7 5.6 5.8 6.1

6.0 6.1 6.0 6.2 6.0

6.1 6.3 5.9 6.0 6.1

5.9 6.0 6.4 6.1 6.0



5) Does question number three fit in the 80/20 rule? Why or Why not?


6) Looking at question number four, is the process in control if the tolerance is + or - 5%? Be thorough

in your answer.

Subject Business
Due By (Pacific Time) 12/08/2014 12:00 pm
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